Dry Sliding Wear Characteristics of Ti-Nb-Si Alloys for Biomedical Application

Kim, Sun Ki; Kim, Han Sol; Kim, Won Yong

doi:10.4028/www.scientific.net/msf.569.149

Cited by 1 publication

(2 citation statements)

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“…The two factors under research consideration are the biocompatibility of the Ti alloy composition and the elastic modulus [17]. Although Ti-6Al-4V and Ti-5Al-2.5 Fe alloys have been widely employed in orthopedic implantation due to their good biocompatibility, mechanical properties, and favorable corrosion resistance [4,18,19], the long-term performance of these alloys has raised some concerns as a result of the release of Al, Fe, and V. Recently, Fe, Al, and V have been recognized as higher cytotoxic elements [20]. As a result, various biomaterials that are free of these hazardous components have been researched for their potential use as implant materials [10,21].…”

Section: Introductionmentioning

confidence: 99%

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Effect of the Si Content on the Dry and Wet Sliding Wear Behavior of the Developed Ti-15Mo-(0-2) Si Alloys for Biomedical Applications

El-Sayed Seleman,

Ataya,

Aly

et al. 2023

Metals

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The durability of a metallic biomaterial to withstand weight loss is a key factor in determining its service life and performance. Therefore, it is essential to create biomaterials with high wear resistance to ensure the biomaterial has a long service life. Thus, this study aims to explore the dry and wet sliding wear characteristics of the developed Ti-15Mo-xSi as-cast alloys (where x equals 0, 0.5, 1, 1.5, and 2 wt.%) in order to assess the impact of the Si addition on the microstructure, mechanical properties, and wear resistance and to consider them for biomedical applications. The wear experiments were conducted using a pin-on-desk wear testing machine at a load of 20 N and a sliding distance of 1000 m with and without applying simulated body fluid (SBF). Different techniques were utilized in the evaluation of the developed Ti-15Mo-xSi alloys. The results showed that significant grain refining was attained with the Si addition. The hardness, compressive strength, and wear resistance of the Ti-15Mo-xSi as-cast alloys increased with the increase in Si content. The Ti-15Mo-2Si as-cast alloy exhibited the highest dry and wet wear resistance of all the Ti-15Mo-xSi alloys. The worn surfaces were investigated, the roughness and main features were reported, and the wear mechanisms were also discussed.

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Section: Introductionmentioning

confidence: 99%

“…In addition, the comparatively high stiffness of Ti alloys in comparison to neighboring bone can cause stress-shielding issues and implant loosening. The elastic modulus of natural bone ranges between 20 and 40 GPa [20,22]. Consequently, an alloy with a low elastic modulus is ideal for replacing hard tissue instruments.…”

Section: Introductionmentioning

confidence: 99%